SMD Power Inductors
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An SMD Inductor, or Surface Mount Device Inductor, has no wire leads on its ends. This type of inductor is mounted directly to the surface of a circuit board via a metal pad on each end of the device.
An SMD inductor commonly comprises a small coil shaped much like a spring, made of an electrically conductive wire. Some SMD inductors have a core of some type at the centre of the coil. Depending on the material chosen to serve as a core, often ferrite based, and the size and density of the core itself, the operational properties of the coil can be altered to fit specific needs.
How to choose a suitable device
As SMD power inductors are typically used for switching power supplies in portable applications like mobile phones, choosing a suitable device depends above all on its size. Circuit board space is at a premium, especially as ever more functionality, and an associated increase in current, is added to the phone.
Other key criteria include the device’s inductance value at the power supply switching frequency, its coil DC resistance, the additional saturation current, the additional RMS current, the equivalent series impedance (ESR) and the Q factor. The choice of shielded or unshielded inductor type is also important, and depends on the application.
Since chip inductor manufacturers rarely provide ESR and Q factor information, designers should ask them for it. The relationship between the inductance and the current given by the manufacturer is often limited to 25°C, so the relevant data within the desired operating temperature range should be obtained. The worst case is generally 85°C.
Manufacturer Part No | Order Code | Description / Manufacturer | Availability | Price For |
Price (Incl JCT)
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Quantity | Inductance | Inductor Type | RMS Current (Irms) | Self Resonant Frequency | Inductor Construction | Saturation Current (Isat) | DC Current Rating | Product Range | Inductor Case / Package | DC Resistance Max | Inductance Tolerance | Core Material | Product Length | Product Width | Product Height | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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IHLP1212AEERR22M11.
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2392934 |
INDUCTOR, SHIELDED, 220NH, 9A, SMD VISHAY
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5+ ¥293.34 (¥322.67) |
220nH | - | 8.5A | - | Shielded | 9A | - | IHLP-1212AE-11 Series | - | 0.0114ohm | 20% | - | 3.6mm | 3mm | 1.5mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
SRR1280-221K
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2336311 |
INDUCTOR, SHIELDED, 220UH, 1.7A, SMD, FU BOURNS
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Each (Supplied on Full Reel)
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400+ ¥92.02 (¥101.22) 2000+ ¥76.03 (¥83.63) 4000+ ¥75.98 (¥83.58) |
220µH | - | 1.6A | - | Shielded | 1.7A | - | SRR1280 Series | - | 0.4ohm | 10% | - | 12.5mm | 12.5mm | 7.5mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
74454115
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1636088 |
Power Inductor (SMD), 15 µH, 1.7 A, Shielded, 3 A, WE-PD3 Series WURTH ELEKTRONIK
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1+ ¥354.26 (¥389.69) 10+ ¥322.91 (¥355.20) 100+ ¥266.48 (¥293.13) 500+ ¥253.94 (¥279.33) 1000+ ¥241.40 (¥265.54) 2000+ ¥239.83 (¥263.81) 4000+ ¥235.04 (¥258.54) More Pricing... |
15µH | - | 1.7A | - | Shielded | 3A | - | WE-PD3 Series | - | 0.085ohm | 20% | - | 12.7mm | 10mm | 4.9mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PM3316-101M-RC
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1103663 |
INDUCTOR, UN-SHIELDED, 100UH, 1.2A, SMD BOURNS JW MILLER
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1+ ¥188.24 (¥207.06) |
100µH | - | 1A | - | Unshielded | 1.2A | - | PM3316 Series | - | 0.33ohm | 20% | - | 12.7mm | 10mm | 5mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
744032008
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1800386 |
Power Inductor (SMD), 8.2 µH, 390 mA, Unshielded, 950 mA, WE-LQ Series, 1210 [3225 Metric] WURTH ELEKTRONIK
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5+ ¥105.65 (¥116.22) 50+ ¥93.98 (¥103.38) 250+ ¥92.00 (¥101.20) 500+ ¥89.82 (¥98.80) 1000+ ¥68.46 (¥75.31) 2000+ ¥67.07 (¥73.78) 10000+ ¥65.69 (¥72.26) 20000+ ¥64.30 (¥70.73) More Pricing... |
8.2µH | - | 390mA | - | Unshielded | 950mA | - | WE-LQ Series | 1210 [3225 Metric] | 0.45ohm | 20% | - | 3.2mm | 2.5mm | 2mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
SDR1307A-330K
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2374035 |
Power Inductor (SMD), 33 µH, 3.1 A, Unshielded, 5 A, SDR1307A Series BOURNS
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1+ ¥195.94 (¥215.53) 10+ ¥139.83 (¥153.81) 100+ ¥131.52 (¥144.67) 500+ ¥100.64 (¥110.70) 1000+ ¥89.51 (¥98.46) 2000+ ¥87.55 (¥96.31) 4000+ ¥85.59 (¥94.15) More Pricing... |
33µH | - | 3.1A | - | Unshielded | 5A | - | SDR1307A Series | - | 0.065ohm | 10% | - | 13mm | 7mm | 0mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
B82477R4153M100
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2254587 |
Power Inductor (SMD), 15 µH, 5 A, Shielded, 8.75 A, B82477R4 Series EPCOS
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1+ ¥405.99 (¥446.59) 10+ ¥285.29 (¥313.82) 100+ ¥228.86 (¥251.75) 500+ ¥183.40 (¥201.74) 1000+ ¥179.74 (¥197.71) 2000+ ¥176.07 (¥193.68) 4000+ ¥172.40 (¥189.64) More Pricing... |
15µH | - | 5A | - | Shielded | 8.75A | - | B82477R4 Series | - | 0.025ohm | 20% | - | 12.5mm | 12.5mm | 8.5mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
74437334068
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2467217 |
Power Inductor (SMD), 6.8 µH, 2 A, Shielded, 4.6 A, WE-LHMI Series WURTH ELEKTRONIK
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5+ ¥401.62 (¥441.78) 50+ ¥338.31 (¥372.14) 250+ ¥308.64 (¥339.50) 500+ ¥302.70 (¥332.97) 1500+ ¥296.76 (¥326.44) 3000+ ¥290.83 (¥319.91) 15000+ ¥284.89 (¥313.38) More Pricing... |
6.8µH | - | 2A | - | Shielded | 4.6A | - | WE-LHMI Series | - | 0.15ohm | 20% | - | 5.2mm | 5.2mm | 1.8mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
MCSD43-680KU
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1864108RL |
Power Inductor (SMD), 68 µH, 370 mA, Unshielded, MCSD43 Series MULTICOMP PRO
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null |
68µH | - | 370mA | - | Unshielded | - | - | MCSD43 Series | - | 1.117ohm | 10% | - | 4mm | 4.5mm | 3.2mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
MSS1278-393MLD
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2288507 |
Power Inductor (SMD), 39 µH, 3 A, Shielded, 4.68 A, MSS1278 Series COILCRAFT
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1+ ¥446.74 (¥491.41) 10+ ¥358.44 (¥394.28) 100+ ¥270.14 (¥297.15) 500+ ¥181.83 (¥200.01) 1000+ ¥170.86 (¥187.95) 2000+ ¥167.45 (¥184.20) 4000+ ¥164.03 (¥180.43) More Pricing... |
39µH | - | 3A | - | Shielded | 4.68A | - | MSS1278 Series | - | 0.0768ohm | 20% | - | 12.3mm | 12.3mm | 8.05mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
SRP7028A-R82M
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2434110 |
Power Inductor (SMD), 820 nH, 13 A, Shielded, 24 A, SRP7028A BOURNS
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1+ ¥145.65 (¥160.22) 10+ ¥127.44 (¥140.18) 100+ ¥105.60 (¥116.16) 500+ ¥94.67 (¥104.14) 1000+ ¥87.39 (¥96.13) 2000+ ¥81.56 (¥89.72) 4000+ ¥77.89 (¥85.68) More Pricing... |
820nH | - | 13A | - | Shielded | 24A | - | SRP7028A Series | - | 0.008ohm | 20% | - | 7.3mm | 6.6mm | 2.8mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
IHLP2020CZER1R0M11
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2125716 |
INDUCTOR, SHIELDED, 1UH, 20%, 10A, SMD VISHAY
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5+ ¥152.05 (¥167.26) 50+ ¥114.12 (¥125.53) 250+ ¥90.14 (¥99.15) 500+ ¥89.20 (¥98.12) 1000+ ¥85.90 (¥94.49) 2000+ ¥82.52 (¥90.77) 10000+ ¥79.14 (¥87.05) 20000+ ¥79.14 (¥87.05) More Pricing... |
1µH | - | 10A | - | Shielded | 6.5A | - | IHLP-2020CZ-11 Series | 2020 [5050 Metric] | 0.011ohm | 20% | - | 5.49mm | 5.18mm | 3mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PM43-100M-RC
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1103582 |
INDUCTOR, UN-SHIELDED, 10UH, 1.7A, SMD BOURNS JW MILLER
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1+ ¥141.08 (¥155.19) 10+ ¥102.05 (¥112.26) 100+ ¥85.43 (¥93.97) 500+ ¥79.01 (¥86.91) 1000+ ¥77.28 (¥85.01) 2000+ ¥68.97 (¥75.87) 4000+ ¥63.36 (¥69.70) More Pricing... |
10µH | - | 1.15A | - | Unshielded | 1.7A | - | PM43 Series | - | 0.18ohm | 20% | - | 4.5mm | 4mm | 3.2mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
38H301C
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2131686 |
INDUCTOR, 300NH, 16A, 30%, SMD MURATA POWER SOLUTIONS
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1+ ¥443.22 (¥487.54) 10+ ¥332.36 (¥365.60) 50+ ¥285.15 (¥313.67) 100+ ¥268.21 (¥295.03) 200+ ¥253.84 (¥279.22) 650+ ¥232.42 (¥255.66) 3250+ ¥218.88 (¥240.77) 6500+ ¥214.34 (¥235.77) More Pricing... |
300nH | - | 16A | - | Unshielded | 32A | - | 3800 Series | - | 0.0022ohm | 30% | - | 10.4mm | 10.4mm | 5.6mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
SRP1038A-8R2M
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2434030 |
Power Inductor (SMD), 8.2 µH, 8 A, Shielded, 12.5 A, SRP1038A Series BOURNS
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1+ ¥224.16 (¥246.58) 10+ ¥156.75 (¥172.43) 100+ ¥118.66 (¥130.53) 500+ ¥101.89 (¥112.08) 1000+ ¥90.92 (¥100.01) 2000+ ¥88.49 (¥97.34) 4000+ ¥86.46 (¥95.11) More Pricing... |
8.2µH | - | 8A | - | Shielded | 12.5A | - | SRP1038A Series | - | 0.024ohm | 20% | - | 11mm | 10mm | 3.8mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
SRR1208-390YL
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2459862 |
INDUCTOR, SHIELDED, 39UH, 3.4A, SMD BOURNS
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1+ ¥170.86 (¥187.95) 10+ ¥126.50 (¥139.15) 50+ ¥113.81 (¥125.19) 100+ ¥101.11 (¥111.22) 200+ ¥97.82 (¥107.60) 400+ ¥94.53 (¥103.98) 2000+ ¥80.89 (¥88.98) 4000+ ¥79.01 (¥86.91) More Pricing... |
39µH | - | 2.5A | - | Shielded | 3.4A | - | SRR1208 Series | - | 0.076ohm | 15% | - | 12.7mm | 12.7mm | 8.5mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
IHLP1212ABEVR47M5A
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2500127 |
Power Inductor (SMD), 470 nH, 6.4 A, Shielded, 7 A, IHLP-1212AB-5A Series VISHAY
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10+ ¥156.20 (¥171.82) 100+ ¥112.63 (¥123.89) |
470nH | - | 6.4A | - | Shielded | 7A | - | IHLP-1212AB-5A Series | - | 0.0195ohm | 20% | - | 3.3mm | 3.3mm | 1.2mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PA4548.332NLT
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2906526 |
INDUCTOR, AEC-Q200, SHIELDED, 3.3UH, 20% PULSE ELECTRONICS
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1+ ¥141.08 (¥155.19) 10+ ¥101.58 (¥111.74) 100+ ¥77.91 (¥85.70) 500+ ¥73.52 (¥80.87) 1000+ ¥60.35 (¥66.39) 2000+ ¥57.62 (¥63.38) More Pricing... |
3.3µH | - | 6A | - | Shielded | 10A | - | PA4548.XXXNLT Series | - | 0.039ohm | 20% | - | 7mm | 6.6mm | 2.2mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PA4344.152NLT
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2906455 |
INDUCTOR, SHIELDED, AEC-Q200, 1.5UH, 47A PULSE ELECTRONICS
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1+ ¥721.67 (¥793.84) 5+ ¥520.09 (¥572.10) 10+ ¥432.32 (¥475.55) 25+ ¥400.43 (¥440.47) 50+ ¥378.29 (¥416.12) 200+ ¥361.38 (¥397.52) 1000+ ¥350.01 (¥385.01) 2000+ ¥343.01 (¥377.31) More Pricing... |
1.5µH | - | 47A | - | Shielded | 52A | - | PA4344.XXXNLT Series | - | 0.0025ohm | 20% | - | 17.7mm | 17.2mm | 7mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PA4341.182NLT
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2906365 |
INDUCTOR, SHLD, AEC-Q200, 1.8UH, 8.5A PULSE ELECTRONICS
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Each (Supplied on Cut Tape)
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1+ ¥150.48 (¥165.53) 50+ ¥109.42 (¥120.36) 100+ ¥83.87 (¥92.26) 250+ ¥81.52 (¥89.67) 500+ ¥79.16 (¥87.08) 1000+ ¥72.11 (¥79.32) 5000+ ¥67.41 (¥74.15) 10000+ ¥65.84 (¥72.42) More Pricing... |
1.8µH | - | 8.5A | - | Shielded | 16A | - | PA4341.XXXNLT Series | - | 0.017ohm | 20% | - | 7.6mm | 6.9mm | 3mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PA4341.223NLT
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2906371 |
INDUCTOR, SHIELDED, AEC-Q200, 22UH, 2A PULSE ELECTRONICS
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1+ ¥150.48 (¥165.53) 50+ ¥109.42 (¥120.36) 100+ ¥83.87 (¥92.26) 250+ ¥81.52 (¥89.67) 500+ ¥79.16 (¥87.08) 1000+ ¥69.60 (¥76.56) 5000+ ¥65.84 (¥72.42) 10000+ ¥64.53 (¥70.98) More Pricing... |
22µH | - | 2A | - | Shielded | 3.5A | - | PA4341.XXXNLT Series | - | 0.19ohm | 20% | - | 7.6mm | 6.9mm | 3mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
LPE4841ER100MG
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2857513 |
INDUCTOR, UNSHIELDED, 10UH, 2.03A VISHAY
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1+ ¥858.99 (¥944.89) 2+ ¥823.73 (¥906.10) 3+ ¥788.46 (¥867.31) 5+ ¥753.19 (¥828.51) 10+ ¥717.92 (¥789.71) 20+ ¥672.47 (¥739.72) 50+ ¥627.01 (¥689.71) 100+ ¥581.55 (¥639.71) More Pricing... |
10µH | - | 2.03A | - | Unshielded | 2.32A | - | LPE-4841 Series | - | 0.03ohm | 20% | - | 10.69mm | 12.5mm | 6.3mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
HCM1A0503-6R8-R
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2762597 |
INDUCTOR, AEC-Q200, 6.8UH, 2.3A, 20% EATON
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1+ ¥242.51 (¥266.76) 10+ ¥188.93 (¥207.82) 100+ ¥146.57 (¥161.23) 500+ ¥144.86 (¥159.35) 1000+ ¥143.14 (¥157.45) 2000+ ¥143.08 (¥157.39) More Pricing... |
6.8µH | - | 2.3A | - | Shielded | 3.8A | - | HCM1A0503 Series | 2020 [5050 Metric] | 0.0972ohm | 20% | - | 5.15mm | 5.1mm | 2.8mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
B1047AS-1R0N=P3
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2871520 |
Power Inductor (SMD), 1 µH, Shielded, 9.2 A, DS75LC Series MURATA
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1+ ¥96.54 (¥106.19) 50+ ¥94.61 (¥104.07) 100+ ¥92.68 (¥101.95) 250+ ¥90.75 (¥99.83) 500+ ¥88.82 (¥97.70) 1000+ ¥86.89 (¥95.58) 5000+ ¥84.96 (¥93.46) 10000+ ¥83.03 (¥91.33) More Pricing... |
1µH | - | - | - | Shielded | 9.2A | 6.4A | DS75LC Series | - | 0.012ohm | 30% | Ferrite | 7.6mm | 7.6mm | 5mm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
SRN6045-3R3Y
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2821660 |
INDUCTOR, SHIELDED, 3.3UH, 5A, SMD, FULL BOURNS
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Each (Supplied on Full Reel)
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1000+ ¥37.15 (¥40.87) 5000+ ¥31.98 (¥35.18) 10000+ ¥31.51 (¥34.66) |
3.3µH | - | 3.2A | - | Shielded | 5A | - | SRN6045 Series | - | 0.0302ohm | 20% | - | 6mm | 6mm | 4.5mm |